public async Task <IEnumerable <INotification> > CreateUpdatedEvent(RouteSegment before, RouteSegment after)
{
var routeSegmentShadowTableBeforeUpdate = await _geoDatabase.GetRouteSegmentShadowTable(after.Mrid);
if (routeSegmentShadowTableBeforeUpdate is null)
{
return new List <INotification> {
new DoNothing($"{nameof(RouteSegment)} is already deleted, therefore do nothing")
}
}
;
if (AlreadyUpdated(after, routeSegmentShadowTableBeforeUpdate))
{
return new List <INotification> {
new DoNothing($"{nameof(RouteSegment)} is already updated, therefore do nothing.")
}
}
;
if (!_routeSegmentValidator.LineIsValid(after.GetLineString()))
{
throw new Exception("Linestring is not valid.");
}
await _geoDatabase.UpdateRouteSegmentShadowTable(after);
if (after.MarkAsDeleted)
{
return new List <INotification> {
CreateRouteSegmentDeleted(after)
}
}
;
var intersectingStartSegments = await _geoDatabase.GetIntersectingStartRouteSegments(after);
var intersectingEndSegments = await _geoDatabase.GetIntersectingEndRouteSegments(after);
var intersectingStartNodes = await _geoDatabase.GetIntersectingStartRouteNodes(after);
var intersectingEndNodes = await _geoDatabase.GetIntersectingEndRouteNodes(after);
var allIntersectingRouteNodesNoEdges = await _geoDatabase.GetAllIntersectingRouteNodesNotIncludingEdges(after);
if (intersectingStartNodes.Count >= 2 || intersectingEndNodes.Count >= 2)
{
throw new Exception("Has more than 2 intersecting start or end nodes.");
}
if (await IsGeometryChanged(intersectingStartNodes.FirstOrDefault(), intersectingEndNodes.FirstOrDefault(), routeSegmentShadowTableBeforeUpdate))
{
var events = new List <INotification>();
events.Add(new RouteSegmentLocationChanged {
RouteSegment = after
});
if (allIntersectingRouteNodesNoEdges.Count > 0)
{
foreach (var intersectingRouteNode in allIntersectingRouteNodesNoEdges)
{
var routeSegmentSplitted = CreateExistingRouteSegmentSplitted(null, intersectingRouteNode, false);
events.Add(routeSegmentSplitted);
}
}
return(events);
}
var notifications = new List <INotification>();
notifications.AddRange(HandleExistingRouteSegmentSplitted(intersectingStartSegments.Count, intersectingStartNodes.Count, after.FindStartPoint(), after));
notifications.AddRange(HandleExistingRouteSegmentSplitted(intersectingEndSegments.Count, intersectingEndNodes.Count, after.FindEndPoint(), after));
notifications.Add(new RouteSegmentConnectivityChanged(before, after));
return(notifications);
}
